公开(公告)号：US20090014099A1

公开(公告)日：2009-01-15

申请号：US10585472

申请日：2005-01-07

申请人： Noriaki Onodera ,  Takuya Satoh ,  Masaharu Ueda ,  Kazuo Fujita ,  Akira Kobayashi

发明人： Noriaki Onodera ,  Takuya Satoh ,  Masaharu Ueda ,  Kazuo Fujita ,  Akira Kobayashi

IPC分类号： C21D8/00

CPC分类号： C21D9/06 ,  B21B1/085 ,  B21B2045/0254 ,  C21D1/84 ,  C21D9/04

摘要： A rail manufacturing method is provided, in which a billet is hot-rolled into a rail form and the rail is cooled to ambient temperature. The foot part of the rail can be mechanically restrained to improve the straightness of the rail during at least the period of cooling where the surface temperature is between 800° C. and 400° C. In the subsequent cooling process, at least while the surface temperature of the foot of the rail is between 400° C. and 250° C., the rail is kept in an upright state, and cooled naturally without using insulation or accelerated cooling.

摘要翻译： 提供了一种轨道制造方法，其中坯料被热轧成轨道形式并且轨道被冷却至环境温度。 轨道的脚部可以被机械地约束，以至少在表面温度在800℃和400℃之间的冷却期间提高轨道的平直度。在随后的冷却过程中，至少在表面 导轨脚的温度在400°C到250°C之间，轨道保持直立状态，并自然冷却而不使用绝缘或加速冷却。

公开(公告)号：US07828917B2

公开(公告)日：2010-11-09

申请号：US10585472

申请日：2005-01-07

申请人： Noriaki Onodera ,  Takuya Satoh ,  Masaharu Ueda ,  Kazuo Fujita ,  Akira Kobayashi

发明人： Noriaki Onodera ,  Takuya Satoh ,  Masaharu Ueda ,  Kazuo Fujita ,  Akira Kobayashi

IPC分类号： C21D9/04 ,  C21D9/06

CPC分类号： C21D9/06 ,  B21B1/085 ,  B21B2045/0254 ,  C21D1/84 ,  C21D9/04

摘要： A rail manufacturing method is provided, in which a billet is hot-rolled into a rail form and the rail is cooled to ambient temperature. The foot part of the rail can be mechanically restrained to improve the straightness of the rail during at least the period of cooling where the surface temperature is between 800° C. and 400° C. In the subsequent cooling process, at least while the surface temperature of the foot of the rail is between 400° C. and 250° C., the rail is kept in an upright state, and cooled naturally without using insulation or accelerated cooling.

摘要翻译： 提供了一种轨道制造方法，其中坯料被热轧成轨道形式并且轨道被冷却到环境温度。 轨道的脚部可以被机械地约束，以至少在表面温度在800℃和400℃之间的冷却期间提高轨道的平直度。在随后的冷却过程中，至少在表面 导轨脚的温度在400°C到250°C之间，轨道保持直立状态，并自然冷却而不使用绝缘或加速冷却。